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Finding the Fourth Proportional to 76,707.47, 105,830.93 and 44,853.81

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Solution

The fourth proportional to 76,707.47, 105,830.93 and 44,853.81 is: 61,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,707.47 : 105,830.93 = 44,853.81 : x
  2. Step 2: Convert to fraction form
    76,707.47/105,830.93 = 44,853.81/x
  3. Step 3: Cross multiply
    76,707.47x = 105,830.93 × 44,853.81
  4. Step 4: Simplify right side
    76,707.47x = 4,746,920,538.48
  5. Step 5: Solve for x
    x = 4,746,920,538.48/76,707.47
  6. Step 6: Final answer
    x = 61,883.42

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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.