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Finding the Fourth Proportional to 13,248.90, 19,840.95 and 13,248.90

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Solution

The fourth proportional to 13,248.90, 19,840.95 and 13,248.90 is: 19,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.90 : 19,840.95 = 13,248.90 : x
  2. Step 2: Convert to fraction form
    13,248.90/19,840.95 = 13,248.90/x
  3. Step 3: Cross multiply
    13,248.90x = 19,840.95 × 13,248.90
  4. Step 4: Simplify right side
    13,248.90x = 262,870,762.46
  5. Step 5: Solve for x
    x = 262,870,762.46/13,248.90
  6. Step 6: Final answer
    x = 19,840.95

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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.