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Finding the Fourth Proportional to 9,876,645.30, 14,814,967.95 and 8,805,890.10

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Solution

The fourth proportional to 9,876,645.30, 14,814,967.95 and 8,805,890.10 is: 13,208,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876,645.30 : 14,814,967.95 = 8,805,890.10 : x
  2. Step 2: Convert to fraction form
    9,876,645.30/14,814,967.95 = 8,805,890.10/x
  3. Step 3: Cross multiply
    9,876,645.30x = 14,814,967.95 × 8,805,890.10
  4. Step 4: Simplify right side
    9,876,645.30x = 130,458,979,602,722.28
  5. Step 5: Solve for x
    x = 130,458,979,602,722.28/9,876,645.30
  6. Step 6: Final answer
    x = 13,208,835.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.