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Finding the Fourth Proportional to 14,886,985.80, 20,884,295.40 and 14,886,985.80

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Solution

The fourth proportional to 14,886,985.80, 20,884,295.40 and 14,886,985.80 is: 20,884,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886,985.80 : 20,884,295.40 = 14,886,985.80 : x
  2. Step 2: Convert to fraction form
    14,886,985.80/20,884,295.40 = 14,886,985.80/x
  3. Step 3: Cross multiply
    14,886,985.80x = 20,884,295.40 × 14,886,985.80
  4. Step 4: Simplify right side
    14,886,985.80x = 310,904,209,062,805.31
  5. Step 5: Solve for x
    x = 310,904,209,062,805.31/14,886,985.80
  6. Step 6: Final answer
    x = 20,884,295.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.