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Finding the Fourth Proportional to 19,106.01, 28,669.95 and 7,417.71

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Solution

The fourth proportional to 19,106.01, 28,669.95 and 7,417.71 is: 11,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.01 : 28,669.95 = 7,417.71 : x
  2. Step 2: Convert to fraction form
    19,106.01/28,669.95 = 7,417.71/x
  3. Step 3: Cross multiply
    19,106.01x = 28,669.95 × 7,417.71
  4. Step 4: Simplify right side
    19,106.01x = 212,665,374.81
  5. Step 5: Solve for x
    x = 212,665,374.81/19,106.01
  6. Step 6: Final answer
    x = 11,130.81

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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.