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Finding the Fourth Proportional to 86,000.52, 118,681.88 and 47,762.53

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Solution

The fourth proportional to 86,000.52, 118,681.88 and 47,762.53 is: 65,912.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,000.52 : 118,681.88 = 47,762.53 : x
  2. Step 2: Convert to fraction form
    86,000.52/118,681.88 = 47,762.53/x
  3. Step 3: Cross multiply
    86,000.52x = 118,681.88 × 47,762.53
  4. Step 4: Simplify right side
    86,000.52x = 5,668,547,150.66
  5. Step 5: Solve for x
    x = 5,668,547,150.66/86,000.52
  6. Step 6: Final answer
    x = 65,912.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.