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Finding the Fourth Proportional to 85,277.53, 117,683.85 and 47,038.71

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Solution

The fourth proportional to 85,277.53, 117,683.85 and 47,038.71 is: 64,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,277.53 : 117,683.85 = 47,038.71 : x
  2. Step 2: Convert to fraction form
    85,277.53/117,683.85 = 47,038.71/x
  3. Step 3: Cross multiply
    85,277.53x = 117,683.85 × 47,038.71
  4. Step 4: Simplify right side
    85,277.53x = 5,535,696,491.83
  5. Step 5: Solve for x
    x = 5,535,696,491.83/85,277.53
  6. Step 6: Final answer
    x = 64,913.89

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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.