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Finding the Fourth Proportional to 86,594.80, 129,827.40 and 47,196.40

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Solution

The fourth proportional to 86,594.80, 129,827.40 and 47,196.40 is: 70,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,594.80 : 129,827.40 = 47,196.40 : x
  2. Step 2: Convert to fraction form
    86,594.80/129,827.40 = 47,196.40/x
  3. Step 3: Cross multiply
    86,594.80x = 129,827.40 × 47,196.40
  4. Step 4: Simplify right side
    86,594.80x = 6,127,385,901.36
  5. Step 5: Solve for x
    x = 6,127,385,901.36/86,594.80
  6. Step 6: Final answer
    x = 70,759.28

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1.5x scale

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.