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Finding the Fourth Proportional to 86,707.97, 130,061.95 and 24,378.47

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Solution

The fourth proportional to 86,707.97, 130,061.95 and 24,378.47 is: 36,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,707.97 : 130,061.95 = 24,378.47 : x
  2. Step 2: Convert to fraction form
    86,707.97/130,061.95 = 24,378.47/x
  3. Step 3: Cross multiply
    86,707.97x = 130,061.95 × 24,378.47
  4. Step 4: Simplify right side
    86,707.97x = 3,170,711,259.82
  5. Step 5: Solve for x
    x = 3,170,711,259.82/86,707.97
  6. Step 6: Final answer
    x = 36,567.70

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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.