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Finding the Fourth Proportional to 86,095.61, 118,811.15 and 47,854.17

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Solution

The fourth proportional to 86,095.61, 118,811.15 and 47,854.17 is: 66,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,095.61 : 118,811.15 = 47,854.17 : x
  2. Step 2: Convert to fraction form
    86,095.61/118,811.15 = 47,854.17/x
  3. Step 3: Cross multiply
    86,095.61x = 118,811.15 × 47,854.17
  4. Step 4: Simplify right side
    86,095.61x = 5,685,608,970.00
  5. Step 5: Solve for x
    x = 5,685,608,970.00/86,095.61
  6. Step 6: Final answer
    x = 66,038.31

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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.